Home / 13,809.45-20,714.84-3,950.18

Finding the Fourth Proportional to 13,809.45, 20,714.84 and 3,950.18

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Solution

The fourth proportional to 13,809.45, 20,714.84 and 3,950.18 is: 5,925.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.45 : 20,714.84 = 3,950.18 : x
  2. Step 2: Convert to fraction form
    13,809.45/20,714.84 = 3,950.18/x
  3. Step 3: Cross multiply
    13,809.45x = 20,714.84 × 3,950.18
  4. Step 4: Simplify right side
    13,809.45x = 81,827,223.35
  5. Step 5: Solve for x
    x = 81,827,223.35/13,809.45
  6. Step 6: Final answer
    x = 5,925.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.